Home / 203,140.29-280,334.39-112,494.27

Finding the Fourth Proportional to 203,140.29, 280,334.39 and 112,494.27

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Solution

The fourth proportional to 203,140.29, 280,334.39 and 112,494.27 is: 155,242.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,140.29 : 280,334.39 = 112,494.27 : x
  2. Step 2: Convert to fraction form
    203,140.29/280,334.39 = 112,494.27/x
  3. Step 3: Cross multiply
    203,140.29x = 280,334.39 × 112,494.27
  4. Step 4: Simplify right side
    203,140.29x = 31,536,011,996.47
  5. Step 5: Solve for x
    x = 31,536,011,996.47/203,140.29
  6. Step 6: Final answer
    x = 155,242.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.